Dazed And Confused

HERE
If you look at this wiki page, as of today, it says this.


"Can't Love, Can't Hurt is the third album of Augustana, a California rock band. The album was released on April 29, 2008 by Epic Records.

The album debuted at number 21 on the U.S. Billboard 200 chart, selling over 21,000 copies in its first week. The album had sold 50,433 copies in the U.S as of June 21, 2008.^[1]"

Is it a coincidence that it debuted at number 21, sold 21,000 copies and the latest figure is as of June 21?

Plus, today's the 17th, or 18th. How are the figures based on 21st?The unreliability of Wiki can never be doubted.